CS130, Computer Graphics Lab

• Class Syllabus

• AntiAliasing Notes

• Quiz 2: Thursday, May 3, on Chapter 5

• Visibility Algorithms new!

Quiz Solutions

1. Quiz1 Solutions

2. Quiz2 Solutions

3. Quiz3 Solutions

4. Quiz4 Solutions

• Under Windows
  
  - download opengl (silicon graphics) and/or glut
  
  - follow these instructions
  

• Under Linux
  
  - download glut.h and put it in the same directory with your opengl file
  - type at the prompt:
  
  export LD_LIBRARY_PATH=/usr/local/pkgs/mesagl/lib
  export LD_LIBRARY_PATH=/usr/X11R6/lib
  
  - compile with:
  
  gcc -lGL -lGLU -lglut [filename.c]
  
  
  Note:
  
  The above settings have been tested on hill only, so if they don't work on your computer logon to hill (ssh hill)
  and do the compilation there.
  If you also need to execute it from hill, you need to export the display to your computer. You can do this like:
  
  >> export DISPLAY=name_of_your_computer:0
   

• Under Cygwin
  
  - Install Cygwin. Also install "OpenGL" under Category->Graphics package list, as well as "gcc" and "make" in Category->Development.
  - After  installation, at cygwin shell, issue the following commands:

  cd /usr/X11R6/lib/
  mkdir old
  mv libGL.a libGLU.a old
  ln -s /lib/w32api/libopengl32.a libGL.a
  ln -s /lib/w32api/libglu32.a libGLU.a
  ln -s /lib/w32api/libglut32.a libGLUT.a

  When there is a problem compiling, make sure the location of glut.h is specified properly.

  
  
  
  

• Assignment 1 & 2 (ps and pdf), updated-check it... (part 1 Sol.)

• Assignment 3 (ps and pdf), Due date May 21

• first.c

• second.c

• rotate.c

• cube.c

• Tutors for Opengl (experiment with lights, projection etc)

• Using Lights & Textures Example   (opengl lights tutorial)

• Glui (creating control windows)

• Putting Text in your Window

• Creating SubWindows in Opengl

• Catching multiple Pressed buttons !new!
  
  1. You will need the new glut 3.7 libraries. Get them from here.
  2. Use glutKeyboardUpFunc & glutSpecialUpFunc functions to capture when the keys are released.
  3. You can find a simple example here.

• Fly3D Toolkit

• Using Sound Effects (under windows only)
  
  1. #include <windows.h>
  2. Use the command: PlaySound(char *filename, NULL, SND_FILENAME && SND_ASYNC) 
  
      e.g. PlaySound("start.wav",NULL, SND_FILENAME && SND_ASYNC)

• Using 3D Object Models
  
  1. You can convert 3d models into opengl cpp code (polygons)
  2. There are several utilities to do so. One is "3D Exploration".
  3. Possibly you need to reduce the number of polygons of your 3D model in order to achieve better speed in your opengl program.
     One such program is "ProgMesh".

• opengl.org

• Opengl tutorial

• More advanced tutorials

• Qt Opengl